an electrolyte imbalance (such as low levels of potassium or magnesium in your blood).

Cetuximab may harm an unborn baby. Use effective birth control to prevent pregnancy while you are using this medicine and for at least 2 months after your last dose. Tell your doctor if you become pregnant.

You should not breast-feed a baby while you are receiving cetuximab and for at least 2 months after your treatment ends. If you use a breast pump during this time, throw out any milk you collect. Do not feed it to your baby.

How is cetuximab given?

Cetuximab is given as an infusion into a vein. A healthcare provider will give you this injection.

cetuximab must be given slowly, and the infusion can take up to 2 hours to complete. You may be given other medications to help prevent serious side effects or allergic reaction.

Cetuximab is often used in combination with other cancer medications and/or radiation treatments. You may receive another cancer medicine 1 hour after your cetuximab infusion.

Cetuximab has caused life-threatening side effects in a small number of patients. After each cetuximab infusion, your caregivers will watch you closely to make sure you do not have any serious side effects.

Cetuximab is usually given until your body no longer responds to the medication. Follow your doctor's dosing instructions very carefully.

You may need frequent medical tests to be sure this medicine is not causing harmful effects. Your cancer treatments may be delayed based on the results.

Cetuximab can have long lasting effects on your body. You may need frequent medical tests for a short time after your last dose.

What happens if I miss a dose?

Call your doctor for instructions if you miss an appointment for your cetuximab infusion.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

What should I avoid while receiving cetuximab?

Cetuximab could make you sunburn more easily. Avoid sunlight or tanning beds while you are receiving cetuximab and for at least 2 months after your treatment ends. Wear protective clothing and use sunscreen (SPF 30 or higher) when you are outdoors.

Cetuximab side effects

Get emergency medical help if you have signs of an allergic reaction (hives, difficult breathing, swelling in your face or throat) or a severe skin reaction (fever, sore throat, burning eyes, skin pain, red or purple skin rash with blistering and peeling).

Some side effects may occur during the infusion. Tell your caregiver right away if you feel short of breath, weak or dizzy, nauseated, itchy, or have wheezing, noisy breathing, or a hoarse voice during the infusion.

See also:

What other drugs will affect cetuximab?

Other drugs may affect cetuximab, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell your doctor about all your current medicines and any medicine you start or stop using.